London Borough of Southwark SE21 7DF
Non material amendment to planning permission ref. 19/AP/0231 dated 20th June 2019 for 'Proposed Works to No 71 Construction of a single storey rear extension with roof terrace at first floor level and new balustrade to existing roof terrace. Proposed Works to No 69 Construction of ground floor rear extension, increase in height of two storey rear outrigger, replacement of rear dormer with a rear dormer widened by 150mm and new balustrade to existing roof terrace'. The amendment seeks the following: window added to flank wall of rear addition at first-floor level, two rooflights added to roof, all new bricks changed from London Stock to 'London Stocks' to match existing and roof dormer cladding changed from render to zinc.
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Progress
Application details
- Reference
- 21/AP/3518
- Local authority
- Southwark
- Postcode
- SE21 7DF
- Ward
- DUVI
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 8 Oct 2021
- Validated
- 8 Oct 2021
- Target decision
- 5 Nov 2021
- Decided
- 29 Oct 2021
Estimated project value
£37k–£100k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 91 CALTON AVENUE, LONDON, SE21 7DFDetached · £3,500,00011 months ago3 Oct 2025
- 65 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,485,00022 months ago11 Oct 2024
- 77 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,100,0002 years ago7 Aug 2024
- 83 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,440,0002 years ago27 Oct 2023
- 87 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,400,0013 years ago25 Apr 2023
- 51 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £2,600,0005 years ago16 Aug 2021
- 99 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,525,1005 years ago20 Jan 2021
- 55 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £2,700,0005 years ago28 Oct 2020
Homes here go for about £3,420,001 — the median of the last 8 market sales in SE21 7DF, £2,600,000 to £3,525,100.
Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
Nearby applications
- 71 Calton Avenue London Borough of Southwark SE21 7DFPendingNext door
- 71 Calton Avenue London Borough of Southwark SE21 7DFPermittedNext door
- London Borough of SouthwarkPermittedNext door
- London Borough of Southwark SE21 7DFPermittedNext door
- 69 Calton Avenue London Borough of Southwark SE21 7DFPermittedNext door
- London Borough of Southwark SE21 7DFWithdrawnNext door